External interrupt 0 or 1 is essentially the same, only EX and IT are changed to 0 or 1. Q: Then the question is: why do we have two very similar external interrupts 0 or 1? A: When there are two external interrupts, such as ...
1602 is a character LCD, which contains 128 ASCII characters, so it can display ASCII characters, but not Chinese characters. 1602 can display two lines of information, 16 characters per line, 5 ...
*External interrupt 0 interrupt, the effect is that the lower four bits are lit, when the interrupt occurs, the upper four bits are lit, after the interrupt ends, the program returns to the main program and continues to light up the lower four bits* include 
* Effect description: Counter interrupt: through the external design count, the program execution is interrupted once, when the interrupt occurs, the high four bits are bright, and after the interrupt occurs, it returns to the main program* include 
*Effect description: Timer interrupt: The program is interrupted once a second through the microcontroller counting. When the interrupt occurs, the high four bits light up for one second, and then the program returns to the main program after the interrupt occurs. * include ...
*Eight-bit clock* include 
Design a DC servo motor control system. The control function requires the realization of six functions of the motor: start, stop control, forward, reverse, acceleration, and deceleration. In order to realize human-computer interaction, it is necessary to use ...
*Timer accurately times 8-bit clock* include 
include 
1 include 
* Main c file generated by New Project wizard** Created: Friday May 5 2017* Processor: 80C31* Compiler: Keil for ...
The previous article has talked about how to manually call Keil's C51 compiler to compile our project. Today I will tell you how to configure the compilation command in the SlickEdit environment. First, create a SlickE ...
STC8A small production: a simple graphics editor based on JLX12864. This article will introduce the driver of JLX12864, as well as the implementation of Bresenham straight line algorithm and circle drawing algorithm. ...
Compared with the traditional 8051 microcontroller, the enhanced 8051 microcontroller not only has larger internal Flash and RAM, but also has more peripheral resources, usually including IIC, SPI, ADC, EEPROM, PWM (timer special ...
I have been studying microcontrollers for some time. I often see the experts answering difficult questions in forums and learn their experiences and methods in blogs. I have benefited a lot. ...
Professor at Beihang University, dedicated to promoting microcontrollers and embedded systems for over 20 years.
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